DESCRIPTION
If the auto up/down function does not operate, the cause may be one or more of the following:
The ECU in the front power window regulator motor LH*1, RH*2 determines that the front power window regulator motor LH*1, RH*2 has not been initialized.
The multiplex network master switch has a malfunction.
The Hall IC in the front power window regulator motor LH*1, RH*2 has a malfunction.
*1: for LHD
*2: for RHD
CAUTION / NOTICE / HINT
Note
The power window control system uses the LIN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the power window control system after confirming that the communication system is functioning properly Click here .
If the front power window regulator motor assembly LH*1, RH*2 has been replaced with a new one, initialize the power window control system Click here.
Check that the "D Window Auto Up" and "D Window Auto Down" power window control system customize settings are "ON" before proceeding with work Click here.
After the catch protection function operates, the auto operation is not performed the first time auto up is performed. All auto up operations performed after the first operate normally.
Tech Tips
If the pulse sensor built into the front power window regulator motor assembly LH*1, RH*2 is malfunctioning, the power window control system enters fail-safe mode. The remote up and down and auto up and down functions cannot be operated during fail-safe mode. However, the power window can be closed by holding the multiplex network master switch assembly at the auto up position, and opened manually by pushing down the multiplex network master switch assembly Click here.
*1: for LHD
*2: for RHD
PROCEDURE
READ VALUE USING GTS (D DOOR P/W AUTO SW)
Use the Data List to check if the multiplex network master switch is functioning properly Click here.
| Tester Display | Measurement Item/Range | Normal Condition | Diagnostic Note |
|---|---|---|---|
| D Door P/W Auto SW | Driver side power window auto up/down signal / ON or OFF | ON: Front power window switch LH*1, RH*2 auto up/down on multiplex network master master switch operated OFF: Front power window switch LH*1, RH*2 on multiplex network master master switch not operated |
- |
*1: for LHD
*2: for RHD
| OK |
|---|
| On GTS screen, item changes between ON and OFF according to above chart. |
| NG |
|
REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY Click here |
| OK |
|
READ VALUE USING GTS (D DOOR P/W AUTO SW)
Use the Data List to check if the multiplex network master switch is functioning properly Click here.
| Tester Display | Measurement Item/Range | Normal Condition | Diagnostic Note |
|---|---|---|---|
| D Door P/W Auto SW | Driver side power window auto up/down signal / ON or OFF | ON: Front power window switch LH*1, RH*2 auto up/down operated OFF: Front power window switch LH*1, RH*2 not operated |
- |
*1: for LHD
*2: for RHD
| OK |
|---|
| On GTS screen, item changes between ON and OFF according to above chart. |
| NG |
|
CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY Click here |
| OK |
|
PERFORM INITIALIZATION
*1: for LHD
*2: for RHD
Initialize the front power window regulator motor assembly LH*1, RH*2 Click here.
Check that the front door power window LH*1, RH*2 moves when the auto up and down functions of the multiplex network master switch assembly are operated Click here.
| OK |
|---|
| Driver side auto up and down functions are normal. |
| Result | Proceed to |
|---|---|
| OK | A |
| NG (for LHD) | B |
| NG (for RHD) | C |
| A |
|
END (POWER WINDOW CONTROL SYSTEM HAS NOT BEEN INITIALIZED) |
| B |
|
REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH Click here |
| C |
|
REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH Click here |
CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY
Temporarily replace the multiplex network master switch assembly with a new or normally functioning one Click here.
Check that the front door power window LH*1, RH*2 moves when the auto up and down functions of the multiplex network master switch assembly are operated Click here.
*1: for LHD
*2: for RHD
| OK |
|---|
| Driver side auto up and down functions are normal. |
| Result | Proceed to |
|---|---|
| OK | A |
| NG (for LHD) | B |
| NG (for RHD) | C |
| A |
|
END (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY WAS DEFECTIVE) |
| B |
|
REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH Click here |
| C |
|
REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH Click here |